Basic Ternary Plot with Markers

Mix.install([
  {:plotly_ex, "~> 0.3"},
  {:kino, "~> 0.18"}
])

Section

A ternary plot represents three-component compositions. Each point has coordinates a, b, c that sum to a constant (here 1.0). layout.ternary sets the axis titles.

alias Plotly.{Figure, Scatterternary}

Figure.new()
|> Figure.add_trace(
  Scatterternary.new(
    a: [0.1, 0.5, 0.2, 0.3],
    b: [0.6, 0.2, 0.5, 0.4],
    c: [0.3, 0.3, 0.3, 0.3],
    mode: "markers",
    name: "Sample A",
    marker: %{size: 10, color: "steelblue"}
  )
)
|> Figure.update_layout(
  title: "Basic Ternary Plot with Markers",
  ternary: %{
    aaxis: %{title: "Component A"},
    baxis: %{title: "Component B"},
    caxis: %{title: "Component C"}
  }
)
|> Plotly.show()